That very same pilot igniter assembly. There is a flame sensor on the assy and the wire is dual purpose, sending the voltage to ignite fuel, and then sensing the burning flame and sending that reading to system, confirming that its ok to open main fuel supply and ignite main burners.
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That very same pilot igniter assembly.
There is a flame sensor on the assy and the wire is dual purpose, sending the voltage to ignite fuel, and then sensing the burning flame and sending that reading to system, confirming that its ok to open main fuel supply and ignite main burners.